Description: This custom Chain Tensioner adjusts to the slack of the timing chain, which increases valve timing stability during higher RPM's.
Note: If you will be using the Performance Twin Idler Gear (see related items below), this tensioner will be unnecessary.
Model Guide: Datsun 240Z, 260Z, 280Z, 280ZX
Code Guide: Datsun S30, S130
Year Guide: 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983
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